1.1算出日期差：
1.access: datediff('d',fixdate,getdate())
2.sqlserver: datediff(day,fixdate,getdate())
ACCESS實例： select * from table where data=datediff('d',fixdate,getdate())
sqlserver實例： select * from table where data=datediff(day,fixdate,getdate())
1.2算出時間差：
1.access: datediff('h',fixdate,getdate())
2.sqlserver: datediff(Hour,'2004-12-10',getdate())
ACCESS實例： select DATEDIFF('h',HMD,getdate())
sqlserver實例： select datediff(Hour,'2004-12-10',getdate())
1.3算出月份差：
1.access: datediff('m',fixdate,getdate())
2.sqlserver: datediff(Month,'2004-12-10',getdate())
ACCESS實例： select DATEDIFF('m',HMD,getdate())
sqlserver實例： select datediff(Month,'2004-12-10',getdate())
2、日期變量 1.access: #"&data&"#
2.sqlserver: '"&data&"' ACCESS實例： select * from table where data=#"&data&"#
sqlserver實例： select * from table where data='"&data&"'
3、是否 1.access: not finished
2.sqlserver: finished=0 ACCESS實例： select * from table where not finished
sqlserver實例： select * from table where finished=0
4、求餘數 1.access: a mod b＝100
2.sqlserver: a % b ＝100 ACCESS實例： select a mod b＝100 from table where not finished
sqlserver實例： select a % b ＝100 from table where finished=0
5、獲取當天日期 1.access: now() 2.sqlserver: getdate()
